A Knight Giga Fortress is a derivation of the Knightmare Frame, characterized by its lack of limbs, immense size, and durability. Such fortresses are essentially hovering assault craft, using a Float System to maneuver themselves through the air, and can be equipped with multiple Slash Harkens, Hadron Cannons, and other weapons.
Knight Giga Fortress by Faction
The Knight Giga Fortress is a remodeled version of the Knightmare Frame characterized by a lack of arms and limbs. The Siegfried was developed in secret, via funding from Prince Schneizel el Britannia. In the DS Game, there is a pink version of the Siegfried known as the Siegfried Kai piloted by Euphemia.